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GRAYL UltraPress Water Purifier
8.5/10 Great
GRAYL UltraPress purifier review. 12.5 oz, removes viruses and chemicals in 10 seconds. How does it compare to the GeoPress for backpacking and travel?
$80
Check Price on Amazon $90
Save $10
Last updated: 2026-04-08
Score Breakdown
Portability 8.0/10
Value 7.0/10
Features 9.0/10
Build Quality 8.5/10
Pros & Cons
What We Like
- True purifier — removes viruses, bacteria, protozoa, chemicals, and heavy metals
- Faster than GeoPress: 16.9 oz of purified water in just 10 seconds
- 3.4 oz lighter than the GeoPress at 12.5 oz total weight
- Simple press operation — no pumping, squeezing, or sucking required
- Compact trail bottle doubles as everyday carry
Watch Out For
- Only 150-liter (40 gallon) cartridge life — most expensive cost per gallon
- 16.9 oz capacity is smaller than GeoPress's 24 oz
- Press mechanism requires moderate hand strength
- At $80+ it is a premium investment for a single-serve purifier
Full Specifications
| Filter Type | press purifier |
| Weight Oz | 12.5 |
| Capacity Oz | 16.9 |
| Flow Rate | 16.9 oz in 10 seconds |
| Filter Life Gallons | 40 |
| Filter Life Liters | 150 |
| Pore Size | electroadsorptive media |
| Contaminants Removed | bacteria, protozoa, viruses, chemicals, heavy metals, microplastics |
| Requires Power | false |
| Virus Removal | true |
| Bpa Free | true |
| Replacement Cartridge Cost | $25 |
| Cartridge Shelf Life Years | 10 |
| Operating Temp | above freezing |
Best For
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